A/T - A604 Intermittent Back-Up Lamps ON In Overdrive

91chrysler08

NO.: 21-01-91 REV. A

GROUP: TRANSMISSION

DATE: July 15, 1991


SUBJECT: Intermittent Lighting of The Back-up Lamps While In Overdrive Gear Selector Position


MODELS:

1990 - 1991 (AA) SPIRIT/ACCLAIM/LeBARON
(AC) DYNASTY/NEW YORKER/LANDAU/SALON
(AG) DAYTONA
(AJ) LeBARON COUPE/LeBARON CONVERTIBLE
(AQ) CHRYSLER'S TC (MASERATI COUPE)
(AS) CARAVAN/GRAND CARAVAN/CARAVAN C/V
VOYAGER/GRAND VOYAGER/TOWN & COUNTRY
(AY) IMPERIAL/NEW YORKER FIFTH AVENUE


THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 21-01-91, DATED 01/28/91 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH >> ARROWS <<.


>> SYMPTOM/CONDITION: <<

Vehicles equipped with an A-604 transaxle (Trans S/N KXXX-0891-XXXX), built prior to May 23, 1991, may exhibit lighting of the back up lamps while the vehicle is being driven with the gear selector in the overdrive position. This condition is intermittent and may not be accompanied by fault codes. Continued driving with this condition may cause clutch failure (most likely the 2-4 clutch).

In addition to the back up lamps coming on when the vehicle is being driven with the selector in the overdrive position, the following symptoms may also exist:

^ Transaxle clutch drag.

^ Slowing of the vehicle.

^ Vehicle shudder (AWD vehicles only).


If the customer complains of any of these symptoms, perform the Repair Procedures listed.

Figure 1:

PARTS REQUIRED:

1 PRNODL Switch >> 4671019 <<
1 Washer, PRNODL Switch >> 5234023 <<

NOTE: THE UPDATED PRNODL SWITCH CAN BE IDENTIFIED BY THE "ANTIQUE BRONZE/OLIVE DRAB" COLORED SWITCH HOUSING. FIGURE 1.

>> REPAIR PROCEDURE: <<

This repair involves the replacement of the PRNODL Switch.

1. Check transmission fluid level and condition.

2. Connect the DRB II to the vehicle and record any fault codes.

3. Erase any fault codes.

4. With the ignition switch in the off position, disconnect the battery negative cable.

5. Disconnect the PRNODL switch wire connector at the switch and remove the PRNODL switch. Inspect the connector for terminal push-out or spreading of terminals as per T.S.B. # 08-16-90.

6. Install the updated "antique bronze/olive drab" PRNODL switch along with the new washer. Ensure the new washer is not cocked when installing the switch. Tighten to 34 N-m (25 ft.lbs.).

7. Connect the PRNODL switch wire connector to the switch.

8. Connect the battery negative cable.


ROAD TEST DIAGNOSIS:

1. Road test the vehicle in overdrive for (10 miles) to assure transmission has reached normal operating temperature and all gear ranges have been used.

2. After road test connect the DRB II to the vehicle and check for any fault codes and repair as required.


POLICY: Reimbursable within the provisions of the warranty.


TIME ALLOWANCE:
Labor Operation No. 08-80-56-91 . . . . . . . . 0.5 Hrs


FAILURE CODE: 61 - Intermittent operation